Caroline Varlen, a talented pianist, after the sudden death of her husband—also a musician—finds herself without money. She takes a job as a private music tutor in a noble family living in a manor house near which, earlier, her sister disappeared at an archaeological dig. Strange things begin to happen in this dark medieval house—things that, at first glance, seem merely mystical… However, in the same house, Caroline—absorbed by her double grief: her husband’s death and her sister’s mysterious disappearance—finds new love, which at first she tries to fight…